NWW3FBR180

WW/MWW/NWW Series Stackpole Electronics, Inc. General Purpose and Precision Wirewound Resistor Resistive Product Solutions Features: WWS offers miniature size at higher power rating High performance for low cost High power to size ratio MWW completely molded construction with welded terminations Complete welded terminations Tinned copper leads Available in non-inductive styles High temperature silicone coating RoHS compliant Higher operating temperatures available B packaging code denotes bulk packaging - contact Stackpole for package quantities Electrical Specifications Power Rating Power Rating Ohmic Range () and Tolerance (*) Type / Code MIL-R-26 Ref. (W) (W) TCR (ppm/C) 125C 70C 0.1% 0.5% 1% 5% WW12 - 0.4 W 0.5 W 5 - 2K 3 - 2K 3 - 2K 5 - 2K WW1 - 1 W 1.1 W 2 - 3K 2 - 3K 2 - 3K 2 - 3K WW1A RW-70 1 W 1.3 W 1 - 5K 1 - 5K 1 - 5K 1 - 5K WW2 RW-69 1.5 W 2.1 W 1 - 10K 0.5 - 10K 0.5 - 10K 0.5 - 10K WW2S - 2.5 W 2.6 W 1 - 10K 0.5 - 10K 0.5 - 10K 0.5 - 10K WW2A - 2.5 W 2.6 W 1 - 10K 0.5 - 10K 0.5 - 10K 0.5 - 10K WW3 RW-79 3 W 3.2 W 1 - 22K 0.5 - 22K 0.5 - 22K 0.5 - 22K WWS3 - 3 W 3.2 W 3 - 10K 1 - 10K 1 - 10K 1 - 10K WW3A - 3 W 3.4 W 1 - 30K 0.5 - 30K 0.5 - 30K 0.5 - 30K WW4 - 4 W 4.3 W 1 - 40K 0.5 - 40K 0.5 - 40K 0.5 - 40K WWS4 RW-79 4 W 4.3 W 1 - 22K 0.5 - 22K 0.5 - 22K 0.5 - 22K WW5 RW-67, RW-74 5 W 5.1 W 1 - 50K 0.5 - 50K 0.5 - 50K 0.5 - 50K WWS5 - 5 W 5.1 W 1 - 40K 0.5 - 40K 0.5 - 40K 0.5 - 40K WW7 - 6.5 W 7.2 W 1 - 70K 0.5 - 70K 0.5 - 70K 0.5 - 70K WWS7 RW-67, RW-74 6.5 W 7.2 W 1 - 50K 0.5 - 50K 0.5 - 50K 0.5 - 50K WW7B - 7 W 7.7 W 1 - 70K 0.5 - 70K 0.5 - 70K 0.5 - 70K WW10 RW-78 10 W 11 W 1 - 100K 0.5 - 100K 0.5 - 100K 0.5 - 100K WWS10 - 10 W 11 W 1 - 70K 0.5 - 70K 0.5 - 70K 0.5 - 70K NWW12 - 0.4 W 0.5 W 10 - 1K 10 - 1K 10 - 1K 10 - 1K NWW1 - 1 W 1.1 W 4 - 1.5K 4 - 1.5K 2 - 1.5K 2 - 1.5K NWW1A RW-70 1 W 1.3 W 2 - 2.5K 2 - 2.5K 1 - 2.5K 1 - 2.5K < 1 = 90ppm/C NWW2 RW-69 1.5 W 2.1 W 2 - 5K 2 - 5K 1 - 5K 1 - 5K 1 to 10 = 50ppm/C NWWS2 - 2.5 W 2.6 W 2 - 5K 2 - 5K 1 - 5K 1 - 5K >10 = 20ppm/C NWW2A - 2.5 W 2.6 W 2 - 5K 2 - 5K 1 - 5K 1 - 5K NWW3 RW-79 3 W 3.2 W 2 - 11K 2 - 11K 1 - 11K 1 - 11K NWWS3 - 3 W 3.2 W 5 - 5K 5 - 5K 3 - 5K 3 - 5K NWW3A - 3 W 3.4 W 2 - 15K 2 - 15K 1 - 15K 1 - 15K NWW4 - 4 W 4.3 W 2 - 20K 2 - 20K 1 - 20K 1 - 20K NWWS4 RW-79 4 W 4.3 W 2 - 11K 2 - 11K 1 - 11K 1 - 11K NWW5 RW-67, RW-74 5 W 5.1 W 2 - 25K 2 - 25K 1 - 25K 1 - 25K NWWS5 - 5 W 5.1 W 2 - 20K 2 - 20K 1 - 20K 1 - 20K NWW7 - 6.5 W 7.2 W 2 - 35K 2 - 35K 1 - 35K 1 - 35K NWWS7 RW-67, RW-74 6.5 W 7.2 W 2 - 25K 2 - 25K 1 - 25K 1 - 25K NWW7B - 7 W 7.7 W 2 - 35K 2 - 35K 1 - 35K 1 - 35K NWW10 RW-78 10 W 11 W 2 - 50K 2 - 50K 1 - 50K 1 - 50K NWWS10 - 10 W 11 W 2 - 35K 2 - 35K 1 - 35K 1 - 35K MWW1 RW-70 1 W 1.3 W 5 - 2K 5 - 2K 5 - 2K 5 - 2K MWW3 RW-79 3 W 3.2 W 3 - 20K 3 - 20K 3 - 20K 3 - 20K MWW5 RW-67, RW-74 5 W 5.5 W 2 - 40K 2 - 40K 2 - 40K 2 - 40K MWW10 RW-68, RW-74 10 W 11 W 2 - 80K 2 - 80K 2 - 80K 2 - 80K NMWW1 RW-70 1 W 1.3 W 10 - 1K 10 - 1K 5 - 1K 5 - 1K NMWW3 RW-79 3 W 3.2 W 5 - 10K 5 - 10K 3 - 10K 3 - 10K NMWW5 RW-67, RW-74 5 W 5.5 W 3 - 20K 3 - 20K 2 - 20K 2 - 20K NMWW10 RW-68, RW-74 10 W 11 W 3 - 40K 3 - 40K 2 - 40K 2 - 40K (*) Other resistance values available - contact factory for details. Rev Date: 12/17/2014 1 www.seielect.com This specification may be changed at any time without prior notice marketing seielect.com Please confirm technical specifications before you order and/or use. WW/MWW/NWW Series Stackpole Electronics, Inc. General Purpose and Precision Wirewound Resistor Resistive Product Solutions Performance Characteristics Test Test Condition Result Moisture Resistance 1000 hours, 95% R.H., 40C 1% max 1000 hours, Load Life 1% cycled power 1.5 hours ON, 0.5 hours OFF, 25C Temperature Cycling 5 cycles, -55C to 200C 0.5% Short Time Overload 5 times rated power for 5 seconds 1% Resistor leads are grounded and high potential probe is 500V for (N)WW12, 1, 1A and 2S. Dielectric Withstand Voltage touched to the resistor body 1000V for all others Operating Temperature Range: -55C to +350C Mechanical Specifications D Type / Code A B C Unit (Bulk) (1) 0.312 0.062 0.110 0.031 0.025 0.002 1.500 typ. inches WW12 / NWW12 7.92 1.57 2.79 0.79 0.64 0.05 38.10 typ. mm 0.375 0.062 0.110 0.031 0.025 0.002 1.500 typ. inches WW1, WWS2 / NWW1, NWWS2 9.53 1.57 2.79 0.79 0.64 0.05 38.10 typ. mm 0.420 0.062 0.110 0.031 0.025 0.002 1.500 typ. inches WW1A / NWW1A 10.67 1.57 2.79 0.79 0.64 0.05 38.10 typ. mm 0.370 0.062 0.156 0.031 0.032 0.002 1.500 typ. inches WW2, WWS3 / NWW2, NWWS3 9.40 1.57 3.96 0.79 0.81 0.05 38.10 typ. mm 0.550 0.062 0.156 0.031 0.032 0.002 1.500 typ. inches WW2A / NWW2A 13.97 1.57 3.96 0.79 0.81 0.05 38.10 typ. mm 0.560 0.062 0.187 0.031 0.032 0.002 1.500 typ. inches WW3, WWS4 / NWW3, NWWS4 14.22 1.57 4.75 0.79 0.81 0.05 38.10 typ. mm 0.500 0.062 0.218 0.031 0.032 0.002 1.500 typ. inches WW3A / NWW3A 12.70 1.57 5.54 0.79 0.81 0.05 38.10 typ. mm 0.700 0.062 0.270 0.031 0.036 0.002 1.500 typ. inches WW4, WWS5 / NWW4, NWWS5 17.78 1.57 6.86 0.79 0.91 0.05 38.10 typ. mm 0.875 0.062 0.312 0.031 0.036 0.002 1.500 typ. inches WW5, WWS7 / NWW5, NWWS7 22.23 1.57 7.92 0.79 0.91 0.05 38.10 typ. mm 1.000 0.062 0.312 0.031 0.036 0.002 1.500 typ. inches WW7 / NWW7 25.40 1.57 7.92 0.79 0.91 0.05 38.10 typ. mm 1.200 0.062 0.312 0.031 0.036 0.002 1.500 typ. inches WW7B, WWS10 / NWW7B, NWWS10 30.48 1.57 7.92 0.79 0.91 0.05 38.10 typ. mm 1.780 0.062 0.375 0.031 0.040 0.002 (2) 1.500 typ. inches WW10 / NWW10 45.21 1.57 9.53 0.79 1.02 0.05 (2) 38.10 typ. mm 0.385 0.062 0.135 0.031 0.032 0.002 1.500 typ. inches MWW1 / NMWW1 9.78 1.57 3.43 0.79 0.81 0.05 38.10 typ. mm 0.560 0.062 0.205 0.031 0.032 0.002 1.500 typ. inches MWW3 / NMWW3 14.22 1.57 5.21 0.79 0.81 0.05 38.10 typ. mm 0.925 0.062 0.330 0.031 0.036 0.002 1.500 typ. inches MWW5 / NMWW5 23.50 1.57 8.38 0.79 0.91 0.05 38.10 typ. mm 1.965 0.062 0.480 0.031 0.040 0.002 1.500 typ. inches MWW10 / NMWW10 49.91 1.57 12.19 0.79 1.02 0.05 38.10 typ. mm (1) SeeResistor Packaging Specification Documen for lead length dimension for tape and reel packaged product (2) Available in 0.036 / 0.91mm Rev Date: 12/17/2014 2 www.seielect.com This specification may be changed at any time without prior notice marketing seielect.com Please confirm technical specifications before you order and/or use.